759 results about "Manufacturing quality" patented technology

A communication system is provided which enhances communication stability, using chips on which function blocks are formed including sensor, chip ID, and radio transmission/reception functions. The sensor detects biological and chemical materials and physical and stoichiometric quantities such as temperature, pressure, and pH and the sensed results are transmitted to a reader by a radio frequency (RF) function. The chip with the sensor functions at a resonance frequency which is detected by the reader initially during a frequency sweep. No dedicated power source is essential to operate the chips, but instead the chips are triggered into transmitting by the radio frequency signals transmitted from the reader. The frequency and output of transmission from the reader to the chips are variable. Stable communication can be performed without being affected by variation in the chips characteristics depending on manufacturing quality.

The invention relates to a water turbine blade blank profile measuring and machining allowance analyzing method capable of effectively solving the problem of water turbine blade blank profile measurement and machining allowance analysis to ensure the manufacturing quality and precision of the water turbine blades, comprising the following technical solutions: measuring the blade blanks by using a digital close range photogrammetry to obtain the measuring point cloud data shapes of the blank profiles consequently, aligning a measuring coordinate system where the measuring point clouds are located to a design coordinate system where a CAD design model is located, establishing a differential relation of free-form surface parameters with respect to rigid rotation parameters by using an analytic method derived by the multivariate of Newton iteration method to obtain a Jacobian matrix and Hessian matrix which are available for a target equation; then performing the numerical optimization calculation based on the LM method and Newton iteration method, and performing report or graphical output and print on the result. The inventive method is scientific, advanced, stable and reliable, and has high accuracy, thereby ensuring the hydraulic stability, production efficiency and cavitation property, and bringing enormous economic and social benefits.

An apparatus is disclosed for the examination and inspection of integrated devices such as integrated circuits. X-rays are transmitted through the integrated device, and are incident on a photoemissive structure that absorbs x-rays and emits electrons. The electrons emitted by the photoemissive structure are shaped by an electron optical system to form a magnified image of the emitted electrons on a detector. This magnified image is then recorded and processed.

In some embodiments, the integrated device and photoemissive structure are independently mounted and controlled. In other embodiments, the photoemissive device is deposited directly onto the integrated device.

In some embodiments, the incidence angle of the x-rays is varied to allow internal three-dimensional structures of the integrated device to be determined. In other embodiments, the recorded image is compared with a reference data to enable inspection for manufacturing quality control.

The invention discloses a multi-point flexible positioning tool which comprises a plurality of rectangular coordinate type flexible support die blocks and a base, wherein the plurality of rectangular coordinate type flexible support die blocks are arranged and fixed on the upper surface of the base; an X-direction sliding panel in each rectangular coordinate type flexible support die block is driven by a driving mechanism to do straight reciprocating motion along an X-direction straight guide track; and a Y-direction sliding panel in each rectangular coordinate type flexible support die block is driven by the driving mechanism to do straight reciprocating motion along a Y-direction straight guide track. The multi-point flexible positioning tool can ensure precise positioning of a thin-walled curved part, rapidly form an optimal support array which is matched with the surface of the part according to three-dimensional information and machining information of the thin-walled curved part to be clamped under the control of a computer control unit, and alleviate the deformation of a workpiece which is stressed and heated in a machining state, thus improving the manufacturing quality and the manufacturing efficiency of the part; and moreover, the tool can also be taken as an assembling tool to assemble the thin-walled curved part, and can effectively improve the machining efficiency and the machining quality of the part.

The invention discloses a longitudinal seam red copper liner welding process of a steel sheet pressure vessel. The longitudinal seam red copper liner welding process sequentially comprises the steps of (a), aligning and splicing a longitudinal seam of a machined cylinder and carrying out point welding fixation; (b), placing the inner longitudinal seam of the machined cylinder on a red copper liner; (c), aligning the longitudinal seam of the machined cylinder to the center line of a welding groove of the red copper liner, fixing the machined cylinder and the red copper liner through an air cylinder, and guiding water into a cooling water pipe of the red copper liner; (d), carrying out welding; (e), disassembling the machined cylinder after the longitudinal seam of the machined cylinder is welded. The welding process has the advantages that automatic submerged arc welding of one-side welding and two-side forming is achieved, the RT flaw detection qualification rate is high, welding flux is saved, the manufacturing quality of the steel sheet pressure vessel is improved, and the production cost is lowered.

The invention relates to a glass packaging LED bulb comprising a flared glass tube, a strutting piece, an LED wick, a stem assembly and a glass bulb case, wherein the flared glass tube is coated with a power lead, and one end of the power lead reversely extends to pass through the flared glass tube; the strutting piece and an exhaust tube are fixed on the flared glass tube; the LED wick is installed on the strutting piece; the stem assembly is assembled with the flared glass tube, the strutting piece and the LED wick; and the glass bulb case is provided with a neck part which is melted and connected with the flared glass tube of the stem assembly to form a chamber, the LED wick is arranged in the chamber, light-permeable liquid is injected into the chamber, and the LED wick is soaked in the light-permeable liquid. The glass packaging LED bulb has the long-term and reliable sealing effect of glass package, provides the resistance capability of serious environment, such as moisture, dust, corrosive gas, and the like, improves the manufacturing quality and speed of the LED bulb and reduces the production cost of the LED bulb.

A manufacturing quality control system for monitoring the proximity of a workpiece to a machine tool is disclosed. The system includes a proximity sensor attached to the machine tool for deriving a first distance measurement based upon the distance between the workpiece and the machine tool. A wireless transmitter generates a radio frequency signal including the first distance measurement. A remote data processing device communicates with the wireless transmitter to retrieve the first distance measurement and display various derivations of sensor data.

The invention discloses an energy-saving hydraulic seal experiment table and a method thereof. The experiment table consists of an experimental cylinder, a driving loop of the experimental cylinder and a loading loop, and is characterized in that the experimental cylinder consists of a left cylinder cover, a left guide sleeve, a cylinder barrel, a piston, a piston rod, a right guide sleeve and a right cylinder cover; the driving loop of the experimental cylinder comprises a variable pump, a safety valve, a filter, a solenoid valve, etc; and the loading loop comprises a fixed displacement pump, an overflow valve, a filter, a solenoid valve, an accumulator and a stop valve. The experiment table can conduct experiments on various sealing rings of the piston and the piston rod, carry out online inspection of the sealing performance and the tribological properties of the sealing rings and the manufacturing quality of sealing elements, and perform experiments on a plurality of sealing elements to be detected simultaneously. The experiment table has the advantages of adjustable experiment speed and pressure, and excellent energy-saving effect.

The invention discloses a laser coaxial powder feeding composite manufacturing machine tool which comprises a cradle type workbench, a spindle, a material additive manufacturing mechanism, a material reducing machining mechanism and an online defect detection mechanism. The material additive manufacturing mechanism comprises a nozzle and a powder feeding device connected with the nozzle. A laser head is arranged at the position of the nozzle and connected with a laser generator. The material additive manufacturing mechanism is clamped by a nozzle bracket. The material reducing machining mechanism comprises a tool, a tool magazine and a tool changing bracket. The online defect detection mechanism comprises a defect detection head and a detection signal collection and analysis system. The invention further discloses a workpiece composite manufacturing method. The process of the workpiece composite manufacturing method mainly comprises the steps that material additive manufacturing, online defect detection and material reducing machining are carried out cyclically, and finally composite manufacturing is completed. By means of compounding of material additive manufacturing, material reducing machining and online defect detection, one-time forming of workpieces high in size precision and surface quality and low in internal defect is guaranteed, the production period is effectively shortened, and the part manufacturing quality and precision are guaranteed.

The invention relates to a self coiling method for an ultra-long protecting sleeve spring which leads a spring steel wire into an automatic spring coiling machine through an aligning mechanism, a rolling wheel and a guiding plate to bend and coil to make into a spiral spring ring; the spring ring that is coiled extends outward rotatably along a V-shaped slot orbit arranged in a discharge port of the automatic spring coiling machine and is driven by a plurality of pairs of rolling wheels mounted on the V-shaped slot orbit to rotate deasil along the rolling wheels or two operating workers stand at two sides of the V-shaped orbit and use hand to deasil turnover the spring that is coiled ceaselessly until the protecting sleeve spring is finished to be coiled. The coiled spring of the invention has higher automation and manufacture quality of the protecting sleeve spring, uniform node distance of the spring and higher precision on the physical dimension of the spring; compared with the adopting a manual coiling by a latch, the invention can save massive spring coiling clampers and special tools as well as greatly save the working intensity of workers.

The invention discloses a matching error calculation method for error transfer modeling of a precision mechanical system. The method comprises the following steps of: measuring shape errors D1 and D2 of two matching surfaces by applying a three-coordinate measuring machine to obtain data of a difference surface, and determining a contact point according to the data of the difference surface; calculating deformation errors delta 1 and delta 2 of the two matching surfaces of a part according to the contact point and assembly force applied to the two matching surfaces, thereby obtaining actual matching surface data D1+delta 1 and data D2+delta 2 considering the shape errors and the deformation errors of the two matching surfaces of the part; and calculating matching error component of the two actual matching surface to obtain matching error so as to be used for error transfer modeling of the precision mechanical system. In the method, the shape errors of the matching surfaces and the part deformation errors produced under the action of the assembly force are considered, a more accurate error transfer model can be established for the precision mechanical system on the basis, and the accuracy for the manufacturing quality prediction and control is improved.

The invention discloses a process method for manufacturing a metallographic specimen, which comprises the following steps: a) quickly grinding a saw-cut specimen, wherein a spectrum-decommissioning specimen grinding machine changed into an abrasive wheel grinding plate is used; and a specimen grinding fixture which can clamp 8 to 10 specimens once is utilized to quickly grind the specimens and is manually held to quickly grind the specimens on the specimen grinding machine until surface roughness reaches to Ra 1.6 to 0.8 microns so as to meet the requirements on precise grinding; b) performing metallographic specimen grinding; and c) performing metallographic polishing. Compared with the prior art, the process method for manufacturing the metallographic specimen in the invention has the advantages of conveniently and quickly manufacturing the metallographic specimen, and not only ensuring the specimen manufacturing quality and analysis quality, but also saving the cost and improving the efficiency.

A manufacturing quality information database structure is useful for tracking quality information relating to a manufacturing process. Accurate tracking of symptoms, defects, and actions (repairs) is achieved through data associations between symptom data entities, defect data entities, and action data entities. Further associations between symptom and symptom category data entities; defect and defect category data entities; and action and action category data entities may be used to increase the data tracking capabilities of the database. Moreover, manufacturing processes and process steps may be tracked by process and process step data entities that may also be associated with the symptom, defect and action data entities. Still further, a variety of different modules and module types may be tracked by including an item data entity that identifies each module.

The invention discloses a selective laser fusion composite manufacturing machine tool. The selective laser fusion composite manufacturing machine tool comprises a lifting workbench, a main shaft, a material increase manufacturing mechanism, a material decrease manufacturing mechanism and a defect detection mechanism capable of detecting workpiece defects online. The material increase manufacturing mechanism comprises a laser scanning system and a powder feeding device; the laser scanning system is connected with a laser generator; the powder feeding device comprises a powder box and a scraper plate. The material decrease manufacturing mechanism comprises a tool, a tool magazine and a tool-changing bracket. The defect detection mechanism comprises a defect detector and a detection signal collection and analysis system. The invention further discloses a workpiece composite manufacturing method. The method mainly includes the step of conducting selective laser fusion material increase manufacturing, defect detection and material decrease processing in a circulating mode till composite manufacturing is completed finally. By combination of the selective laser fusion material increase manufacturing, material decrease processing and defect detection, it is ensured that workpieces with high size precision, high surface quality and low internal defects are formed at a time, the production period is shortened effectively, and the part manufacturing quality and precision are ensured.

Disclosed is a computer readable medium containing a program product provided for the development, receipt, storage, and presentation of the data necessary for delivery of quality assurance test activities. In particular, the program product allows users to create quality assurance testing criteria and procedures; define, document, and approve specific actions and allocate unique categorization codes. The program product includes a module for the creation and storage of predefined text and image elements for the provision of enterprise wide knowledge sharing. The program product applies calculations to consolidate and convert data into statistical reports utilizing a variety of user-defined criteria, including but not limited to component descriptor, quality criteria, time period and manufacturer. The program product also accepts, consolidates and calculates post-production quality resource utilization/costs, segregated periodically and/or consolidated, enabling stakeholders to determine appropriate corrective actions based on ongoing quality assurance testing outcomes.

The invention relates to an emulsion pump testing system, comprising an electrical apparatus control system which is used for driving a motor to start or stop, a transmission box connected with a tested pump, an emulsion pump circulating system and a hydraulic oil circulating system for driving the transmission box; the working load of the tested pump is changed by adjusting the discharging amount of an oil hydraulic motor, hydraulic pressure output by the tested pump is compensated to the oil hydraulic motor mostly by a loading cylinder, namely, the oil hydraulic motor is not only a driving force source of the tested pump, but also is a load of the tested pump; the system can carry out reliability detecting test to the emulsion pump with different type and different power, and the comprehensive performance and manufacturing quality of the emulsion pump are detected in an on-line way, therefore, the occupying area of the equipment is not only reduced, but also the operating power can not be converted into heat energy, so as to reduce the operating cost; the most important point is that the power can be recycled, the energy consumption is greatly reduced; compared with the prior art, the energy saving can reach about 70 percent, the structure is simple and energy-saving, and has good using effect.

The invention discloses a laminated structure hole manufacturing online monitoring self-adaptive machining method. The laminated structure hole manufacturing online monitoring self-adaptive machining method comprises the following steps that (1), a hole manufacturing cutter installed on a numerical control machine tool is adopted to manufacture holes in laminated structures of carbon fiber reinforced composite materials and alloy materials, the distance between the laminated structure hole forming position reached by the bottom end of the hole manufacturing cutter and the material interface in the laminated structures is measured through an ultrasonic thickness measurement method, and then the distance signal is transmitted to a control system of the numerical control machine tool with the hole manufacturing cutter after being processed; (2), the control system of the numerical control machine tool compares the received distance signal with a set value 0, if the distance value is greater than 0, the control system of the numerical control machine tool still outputs an initial control signal, and if the distance value is 0, the control system of the numerical control machine tool outputs a new preset control signal to change the spindle rotation speed and feeding speed of the hole manufacturing cutter. By the adoption of the method, the laminated assembly hole manufacturing quality and hole machining efficiency can be improved, and the cost is lowered.

The invention relates to a manufacturing method of a mobile phone shell and a special die. The method is used for manufacturing a front shell or a back shell of a mobile phone and specifically comprises the following steps of cutting sheet metal into metal sheets first, drawing the metal sheets into concave hollow pieces, shaping notches of the concave hollow pieces, then putting in a die for extrusion forming, performing nanometer treatment and nanometer injection molding after extrusion forming, milling and trimming a workpiece through CNC (Computer Numerical Control), and then performing surface treatment on the workpiece. The die for manufacturing the front shell or the back shell of the mobile phone comprises a lower die and an upper die, wherein the upper die is matched with the lower die. The manufacturing method has the advantages of reasonable concept, simple operating process, good manufacturing quality and high efficiency and is suitable for popularization and application.

The invention relates to an ultra-thin sun energy level silicon chip and cutting technology thereof which belongs to the solar cell field. The body of the ultra-thin sun energy level silicon chip is the square slice composed of upper and lower planes in parallel, the foursquare of the square slice is four same chamfer angle of 45 DEG. The distance of the upper and lower planes is in the scope of 165-195 um, the angularity is less than 75 um, and the surface of the plane is bright, flat and flawless. The ultra-thin sun energy level silicon chip cutting technology adopts a silicon wafer stick excavator to directly cut silicon wafer stick into octagonal square cylinder whose cross-section is square and foursquare is the same chamfer angle of 45 DEG, the cutting excess stock is lump which can be reused by scrap. It also adopts optimized cutting technology to cut into the ultra-thin sun energy level silicon chip on the multi-thread cutting machine so as to guarantee the manufacturing quality of the ultra-thin sun energy level silicon chip, improve productivity, and reduce the manufacturing cost of ultra-thin sun energy level silicon chip.

The invention relates to a stretch-bending molding process of an angle steel component of a vehicle body and mainly aims to scientifically and rationally overcome the defects of overlarge rebound modulus and section bending deflection of workpieces and the like during the stretch-bending molding of the angle steel component of the vehicle body. The process realizes the emulation of pretension and post-tension corresponding to the minimum rebound modulus, provides a computing formula for the initial length of profiles and a trajectory model of a clamp, improves the forming quality, precision and work efficiency of a stretch-bending workpiece and the manufacturing quality of vehicle steel structure, reduces the manufacturing and maintenance cost, overcomes stretch-bending defects and provides basis for the stretch-bending molding precision control of profile parts. The process initially establishes a mathematical model for length rebound modulus of a multi-curvature profile, can precisely determine the initial length of a blank profile of parts, determines the optimal pretension and post-tension by a simulation method and precisely determines the trajectory of the clamp by establishing a multi-curvature profile stretch-bending module, thereby obtaining the ideal forming quality of the formed profile.

The invention discloses a structural member crack propagation prediction method based on multi-factor fusion correction. Under the consideration of various factors with impacts on crack propagation of a structural member, the structural member crack propagation prediction method comprises: measurement and correction of initial crack morphology features of the structural member, stress intensity of the crack root of the structural member and the residual stress; calculation of a stress ratio; calculation of dimension correction parameters; selection of correction parameters of surface manufacturing quality. With the adoption of the structural member crack propagation prediction method, the precision of the prediction result is greatly improved. Therefore, the crack propagation of the structural member can be accurately and effectively predicted.

The invention discloses a virtual simulation method and system of a camera motion control system in film shooting, and belongs to the technical field of camera control. The method and the system cause a film creator to more visually regulate the motion track and the picture sequence of the camera according to own operation habits and visual angles, picture planning and the like in the early stage of film shooting, utilizes three-dimensional virtual simulation to design a satisfactory lens effect for the creator, automatically calculates the parameters of the camera motion control system which plans to be adopted, and precisely controls the space coordinates of the camera lens so as to improve the interaction of the camera motion control system, save the shooting cost of the lens which uses the camera motion control system and greatly improve the digital manufacture quality and efficiency of the film.

The invention discloses a method for producing parts by utilizing a silicon mould. The method comprises the two steps of silicon mould manufacture and part duplication, wherein silicon mould manufacture comprises the steps of mould master template preparation, mould frame manufacture and part sample piece placement, silicon treatment and vacuum casting, demoulding and the like; and part duplication comprises the steps of mould preparation, AB material treatment and vacuum casting, demoulding and part fetching, duplicated part posttreatment and the like. The method has the advantages that the manufacture cycle is short; the part manufacture quality is high; and multiple parts can be obtained in a short time, so that requirement of early-stage verification work can be met.

The invention discloses a preparation method of a brain tissue rapid freezing section. According to the method, acetone is used as a freezing embedding medium and a liquid nitrogen intermediate medium, so that brain tissue can be rapidly frozen , and formation of ice crystals on the brain tissue can be effectively reduced; besides, factors affecting manufacturing quality, such as temperatures during material drawing and sectioning, fixing and soring conditions after sectioning and the like, of the freezing section are optimized, and the quality of the finally prepared section is further guaranteed. According to the brain tissue rapid freezing section obtained with the method, the freezing section which has stability and can well protect antigens and the enzyme activity is provided for further immunofluorescence, immunohistochemistry and in situ hybridization tests on the brain tissue, and a pathological section meeting requirements is provided for future clinical diagnosis related to nervous system diseases and scientific researches. Particularly, molecular and biochemical index detection can be further performed on other tissue of a mouse which is not subjected to perfusion treatment in the scientific research.

The invention discloses a case library system and method for supporting the complex product advanced manufacture. The case library system comprises a case learning module, a case storing module, a case matching module, a case screening module, a case reusing module and a case updating module, wherein the case learning module, the case storing module and the case updating module are used for realizing a machine learning function of the system together while the case matching module, the case screening module and the case reusing module are used for realizing the machine intelligent reasoning function of the system. By utilizing the invention, a user is prevented from carrying out the service selection and parameter optimization from scratch, the working efficiency of the user is greatly improved, and the design manufacture period of the complex products is shortened; in addition, the quality of design manufacture is ensured, the risk on failure or shortage is reduced, and finally the total cost of the full manufacture process of the complex products is reduced.

The invention reveals a PCB (printed circuit board) blind hole quality analyzing method, firstly inputting design data of manufacturing laser blind holes on the PCB and actual measured data, and using the design data and measured data to calculate various statistical quantities. The expressing modes of these statistical quantities include target diagram, hole position deviation distribution diagram, vector diagram, pad area ratio distribution diagram and remaining glue area ratio distribution diagram, and it can display copper window message, pad message and relative message of pad by these diagrams. Finally, by these messages, it can clearly show manufacturing quality of laser blind holes on the PCB.

The invention provides an auxiliary device for manufacturing a cable head, comprising a stand, a rotary cutting mechanism, a linear cutting mechanism and a press mechanism, wherein the stand is provided with support legs and a working table plate articulated with the support legs; the working table plate is provided with a cable wire placing groove along a length direction; a rotary cutting tool rest is arranged at one end of the working table plate; a linear cutting tool rest is arranged on a linear sliding rail; the linear sliding rail is connected to a working table plate side and parallel to the working table plate; the press mechanism is provided with a supporting seat and a press plate arranged on the supporting seat; the supporting seat is connected to the side surface of the working table plate; and the press plate is provided with a pressing wire groove opposite to the cable wire placing groove positioned on the working table plate up and down. The auxiliary device is used for completing the fast striping and cutting of a cable wire protective layer during the manufacture of the cable head and accurately controlling the striping and cutting length and depth of the cable wire protective layer, thereby enhancing the manufacturing quality of the cable head and reducing the labor intensity of operators; in addition, the auxiliary device is portable after be folded, has convenient and fast assembly and disassembly of parts and is very suitable for being used as a striping and cutting tool on a manufacturing site of the cable head.

The invention discloses a method for predicting electrical properties of deformed log-periodic antennae based on an electromechanical coupling model, aiming to mainly solve the problem of electromechanical separation in the log-periodic antennae. The method comprises the following steps: building a finite element model based on the structural design parameters of the log-periodic antennae, loading dead load, random wind and other environmental loads and carrying out finite element analysis to obtain the structure displacement field of the log-periodic antennae; utilizing the analysis results to obtain current distribution of oscillator units in the log-periodic antennae and phase difference caused by the positions and deflection of the oscillator units and computing the far field patternsof the log-periodic antennae according to the superposition theorem; and obtaining the electrical property parameters of the log-periodic antennae to realize electromechanical coupling analysis of the log-periodic antennae. The method can help the log-periodic antenna structural design personnel improve the antenna design and manufacturing quality.

The invention discloses a method for lifting and installing a whole bridge arch rib. The method includes the following steps of dividing the arch rib into two side arch rib bodies and a middle arch rib body, splicing the side arch rib bodies on a wharf, hoisting the side arch rib bodies to a set position through a floating hoist, erecting a side supporting system and a lifting portal, installing a lifting system, splicing a middle supporting system below the design position of the middle arch rib body, installing the middle arch rib on the upper face of the middle supporting system, arranging a temporary beam at the bottom of an arch foot of the middle arch rib body, arranging a temporary horizontal rope between the two ends of the arch foot, correspondingly connecting the lifting system with the temporary beam, and lifting, horizontally moving, putting down, putting in position, folding and installing the whole middle arch rib body. By means of the method, the requirements for installation quality and precision of the large-span arch rib bridge can be met, section lengths can be flexibly adjusted, section manufacturing quality is optimized, and section in-situ precision is improved.

The invention relates to a flexible positioning device for assembling and welding pipelines and belongs to the technical field of assembling and welding of pipe parts. A flange positioning assembly, a pipe joint positioning assembly, a pipe fitting bearing assembly and a telescope-feed positioning assembly are all arranged on a foundation plate, and adapting seats of the assemblies are connected with one another through positioning keys and T-shaped grooves. According to the flexible positioning device for assembling and welding the pipelines, by means of matching of the assemblies, accuracy of assembling and welding pipe fittings is improved, shape correction of the pipe fittings during assembling is reduced, manufacture qualities and reliabilities of the pipe fittings are improved, the assemblies can be adjusted, and requirements for assembling and welding the pipe fittings with different sizes and shapes can be well met by adjusting positions and heights of the assemblies when users are confronted with the pipe fittings with different sizes and shapes, so that the applicability of the flexible positioning device is greatly enhanced; the flexible positioning device can be continuously recycled and greatly reduce usage and manufacture costs; defects that medium frames in prior art are low in positioning accuracy, poor in rigidity, easy to deform during using, and long in manufacture period can be overcome.